Typewriting machine



Jan. 2, 1923. 1,440,792

E. A. PETERSON.

TYPEWRITING MACHINE. FILED SEPT 21, 1920.

by {My Affom y Patented Jan. 2, 1923.

UNITED STATES PATENT OFFICE.

:ILDWIN A. PETERSON, F MADISON, WISCONSIN, ASSIGNOR TO UNDERWOOD TYPE-CQMP A NY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPEWBITING MACHINE.

Application filed September 21, 1920. Serial No. 411,717.

To all whom it may concern:

Be it knownthat I, EDWIN A. PETERSON, acitizen ofthe United States,residing in Madison, in the county ofDane and State of Wisconsin, haveinvented certain new and useful Improvements in Typewriting Machines,of'which the following is a specification." 'This invention relates totypewriting machines, and one of the principal objects thereofis toprotect the front face of the 'typew'r iting machine frame from Wear anddefacement incidental to cleaning of the type faces. In machines, suchas the Underwood typewriter, to which my improvement is particularlyapplicable, the ink from the type,

the operationof cleaning the same, gets "onto th'eedgepart of the frameadjacent which the types rest in normal position, re-

' suiting in'not only smearing the same, but

i in removing the gloss and gradually eradicating themargin lines anddestroying the name" which is usually marked or stenciled just under theedge of the frame. I "A {feature of this invention consists inproviding-a ledge at the outer edge of the -frame, sothat when the typeare brushed the face of the plate is protected by the ledge from theabrasive action of the brush strokes, and from the smearing of ink anddir'tthereon. i

7 More particularly, the invention, in one embodiment thereof, consistsin providing a separate attachable and detachable coverplate carryingsaid ledge, and having an upper-flange extending rearwardlyto overlieand pro'tecta rearwardly-extending upper "edge part of a frontframeplate terminat- 4qiing adjacent and at the front of the types,

and havingalower protective and strength ening flangeat the front of theframe plate, -=ysa;id:;ledge preferably beingfformed by a 4121 es. I 'r11",. Qther features and advantages will here- .in'afler-epp ar. a I '1"intheiaccompanying drawings,

GFigure'I'isa; perspective view of an Un- 1 u-shapedbend between andjoining the two g able cover-plate is provided, the arcuate U-Z-shapeddedge 6 has its upper leg extended Y rearwardly to form-an upperflange 12 overlying and protecting the rearwardly-turned demoedtypewnting machine, showing my i pm n nt grplies i the et plate.

in an arc of a circle and at their forward ends have type-heads 2carrying typesll,

rest, when in normal position, upon a supportingmember 4%, shown in Fgure 2, and

the type-heads 2 at this time lie adjacent and just to the rear of theinner edge of thearcuate upper edge part 5 of the front plate, withthetype's 3 exposed upwardly at a slight-elevation'above therearwardlyturned arcuate upper edge part 5 of the front plate 1. Inorder to protect the front face of the plate 1, I provide a ledge'G atthe outer top edge thereof, and this ledge 6 may be formed integral withthe plate 1 or it may constitute a separate cover-plate, which may beattached to the frame in any suitable manner. When a separate coverplateis used, I prefer to form the same as indicated in Figure 1, in whichsaid coverplate has its ends 7 bent at 8, and further bent at 9 to formhooks or catches 9 which may hook over the rear edges 10 of therearwardly-turned upper lateral parts 11 of the machine frame plate 1.In both constructions, it is preferable that the word Underwood, whichis usually put on below the top edge of the frame plate, be placed alittle bit lower than the position usually occupied. I

. The ar'cuate forwardly-projecting overhanging-shelf or ledge 6 ispreferably fornt ed, as shown in the drawings, bya trans "verselyU-shapedbendor loop. In the form of the inventionillustrated in thedrawings, inwhich aseparate attachable and detacharcuate upper edge part5 jofthe front frame plate 1, and has its lower leg turned downridlr. 13o e-a lew fl ng t the front of the frame plate l. The ledge 6 protectsthe lettered and ornamentally line front face of the front plate 1 fromforeign matter resulting from cleaning the types 3, while the rearflange 12 not only protects the rearwardly-extending plate part 5 fromforeign matter but also from abrasion which would result from accidentalcontact of the cleaning brush. The name Underwood is placed just belowthe lower edge of the downwardly-extending flange 14, as indicated inFigure 1 of the drawings, by the terminal letters UD, so as to beshielded and protected by the ledge 6.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. A front-strike typewriting machine having, in combination,type-levers normally occupying a substantially horizontal position andarranged in the arc of a circle with types on the forward ends thereofexposed upwardly, and a front frame plate provided with an arcuate upperedge adjacent the types at the front thereof and extending downwardly,said front plate being provided adjacent its upper edge with aforwardlyprojecting shelf or ledge for protecting the front face of thefront frame plate below said ledge from foreign'matter resulting fromcleaning the types.

2. In a front-strike typewriting machine having type-levers normallyoccupying a substantially horizontal position in the arc of a circlewith types on their forward ends exposed upwardly, and having a frontframe plate provided with an arcuate upper edge part terminatingadjacent and at the front of the types and extending downwardly, thecombination of an attachable and detachable cover-plate for the upperedge part of the front frame plate and having a forwardlyprojectingoverhanging shelf or ledge for protecting the front face of the frontframe plate below said ledge from foreign matter resulting from cleaningthe types.

3. In a front-strike typewriting machine having type-levers normallyoccupying a. substantially horizontal position in the arc of a circlewith types on their forward ends exposed upwardly, and having a frontframe plate provided with an arcuate upper edge part terminatingadjacent and at the front of the types and extending downwardly, thecombination of an attachable and detachable cover-plate for theupperedge part of the front frame plate and having a forwardly projectingoverhanging shelf or ledge for protecting the front face of the frontframe plate below said ledge from foreign matter resulting from cleaningthe types, the coverplate compris ng a unitary device provided at itsends with catches for detachably engaging over the lateral upper edgesof the front frame plate for detachably holding the cover-plate in placeon the front frame plate.

4. In a front-strike typewriting machine having, in combination,type-levers normally occupying a substantially horizontal position andarranged in the arc of a circle with types on the forward ends thereofexposed upwardly, and a front frame plate having a substantiallyvertical part providing a front face and having an arcuate upper edgeadjacent and at the front of the types, said front plate being providedadjacent its up per edge with a forwardly-rounded U-shaped overhangingshelf or ledge for protecting the front face of the front plate fromforeign matter resulting from cleaning the types.

5. In a front-strike typewriting machine having type-levers normallyoccupying a substantially horizontal position in the arc of a circlewith types on their forward ends exposed upwardly, and having a frontframeplate provided with an arcuate upper edge part terminating adjacentand at the front of the types, the combination of an attachable anddetachable cover-plate seated on and supported by the upper edge part ofthe front frame plate for protecting said upper edge part of the frameplate from foreign matter resulting from cleaning the types and meansfor securing the cover-plate to the machine.

6. In a front-strike typewriting machine having type-levers normallyoccupying a substantially horizontal position in the arc of a circlewith types on their forward ends exposed upwardly, and having a frontframe plate comprising, a substantially vertical lower part and arearwardly-extending arcuate upper edge part terminating adjacent and atthe front of the types, the combination of an attachable and detachablecoverplate seated on and supported by the rearwardly-extending upperedge part of the front frame plate for protecting saidrearwardly-extending part of the front frame plate during the cleaningof the types.

7. In a front-strike typewriting machine having type-levers normallyoccupying a substantiallyhorizontal position in the arc of a circle withtypes on their forward ends exposed upwardly. and having a front frameplate comprising a substantially vertical lower part and arearwardly-extending arcu- L ate upper edge part terminating adjacentand at the front of the types, the combination of an attachable anddetachable coverplate comprising an arcuate forward1y rounded U-shapedoverhanging shelf or ledge projecting forwardly beyond the vertical partof the front frame plate for protecting the front face thereof fromforeign matter resulting from cleaning thetypes, an upper flangeextending rearwardly from the upper leg of the U-shaped ledge and oventhe front frame plate for removably holding lying therearwardly-extending upper edge the cover-plate in place on the frontframe part of the front frame plate for protecting plate.

said rearwardly-extending part of the frame EDWIN A. PETERSON. 5 plateduring the cleaning of the types, and Witnesses:

terminal catches on the cover-plate for de- KING N. BACON,

tachably engaging over the upper edge of ANITA WILKE.

